Sonic the Hedgehog Adventure Gamebook (Ladybird)

Sonic the Hedgehog Adventure Gamebooks was a series of four gamebooks published in the United Kingdom by Ladybird. Unlike most gamebooks, these were largely pictorial, and instead of directly telling the reader which page to go to next, there were activities such as spot the differences, mazes, and finding the number of a certain object on the page. The solution to these activities would be the next page number.